The Solar Impulse team has launched the Swiss-made plane -- which flies without a drop of fuel -- on its first inter-continental trip ahead of a planned bid to fly round the world in 2014.

The planned desert flight from the Moroccan capital to the southern town of Ouarzazate on June 13 was abandoned due to strong winds and turbulence near the Atlas mountains.

Ouarzazate is the final goal in a flight that began in Payerne in Switzerland on May 24, when Solar Impulse set out for Madrid, the first stage of the planned trip to cross the Mediterranean and fly from Europe to Africa.

The giant high-tech aircraft, which has the wingspan of a jumbo jet but weighs no more than a medium-sized car, is fitted with 12,000 solar cells feeding four electric motors driving propellors.